Ogemaniac wrote:Roughly, the upper intermediate are JLPT3, the audio blogs JLPT2.
I think that is a little harsh. The audio blogs have a lot of N1 vocabulary and seem well above N2. The N2 listening section doesn't seem any worse to me than listening to to an upper-intermediate stone cold (eg, without reading the transcripts first any skipping straight to the actual story so that you aren't given free context). In fact, I find the upper intermediates done this way are almost exactly as difficult as the N2 practice listening exams I have run through (and passed). I generally listen to them cold, then listen again in full, and then listen again while reading the transcript to mop up anything I missed.
I'd say
N3 = a bit above lower intermediate
N2 = a bit above upper intermediate
N1 = somewhere above the audio blogs (I don't know because I am prepping for N2).